Conveyer-scoop.



No. 810,917. PATENTED JAN. 30,1906.

W. CROSSLBY. GONVEYER SCOOP.

APPLICATION FILED JAN. 12. 1905.

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' /NVENT0I? M/[z'am (109318 BY c/ 6072;? Ell n A TTOI? No.-810,917.PATENTED JAN. 30, 1906. vW. GROSSLEY.

GONVEYER SCOOP.

APPLICATION rum) JAN. 12. 1905.

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w/mmss s; INVENTOH No. 810,917. I PATENTED JAN. 30, 1906. W. GROSSLEY.

OONVEYER SCOOP.

APPLICATION nun JAN.12. 1905.

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y 5 1 U WITNESSES. INVENTOI? Z M14501?! 63ml? WILLIAM GROSSLEY, or

WEST HAVEN, CONNECTICUT.

CONVEYER-SGOOP.

Specification of Letters Patent.

Patented Jan. 30, 1906.

Application filed January 12, 1905. Serial No. 240,740.

To all whom it may concern.-

Be it known that 1, WILLIAM CRossLnY, a citizen of the United States,and a resident of West Haven, in the county of New Haven and State ofConnecticut, have invented certain new and useful Improvements inConveyer-Scoops, of which the following is a full, clear, and exactspecification.

My invention relates to, elevator mechanism of the class in which anendless chain or belt of conveyer buckets or scoops is carried by srocket wheels or drums to raise material om the lower to the higher loopof the belt and deposit it by conveyer-scoops at the upper of theirtravel.

turning-point The invention has for its obj ect'to provide an improvedconstruction of conveyer bucket or scoop particularly adapted todredging, excavating, and placer-mining or digging mineral ore, rockysoil, and ore-sand and for being readily transported, set up, andrepaired in districts that are remote from machine-shops and skilledlabor.

The invention consists in the novel construction of the scoops and theirsectional shell and in the arrangement and combination of parts, ashereinafter more fully described and claimed.

In the accompanying drawings, forming a part of this specification,Figure 1 is a side elevation of the lower revolving s rocketdrum orcarrier-wheel and section 0 a chain of conveyer buckets or scoops. Fig.2 is a vertical section, lengthwise of the axle, of a part of thesprocket-drum and chain of scoops on the line m as, Fig. .1, enlarged totwice the dimensions of the parts of said figure. Fig. 3 is across-section on the line a; no of Fig. 2. Fig. 4 is a plan viewof theend of a scoop viewed radially from the axle toward the scoop. singlecarrying-tooth and corresponding section of the disk of thesprocket-drum viewed radially from the periphery of the wheel toward theaxle. Fig. 6 is an end view of a bucket or scoop. Fig. 7 shows a part ofthe upper sprocket-drum and section of the chain of scoops.

Referring to the drawings, A designates one of the polygonal-sided orsubstantially cylindrical disk-heads of the sprocket drum or wheel, ofwhich there are two to each drum, connected by bolts 1) to thecylindrical hub D. Said hub is generally fastened to its shaft when itpertains to the upper drum or i that driven by the inversion of the Fig.5 is a plan view of a the motive power; but the lower drum, which isthat here shown, is preferably mounted and adapted to revolve upon itsshaft E, which is rigidly supported in the lower ends of suitable armsor frames F. To the outer face of each disk are bolted or riveted thepointed carrier teeth 9, regularly spaced around the periphery of thedisk, with their points projecting therefrom, as shown. On the insidefaces of the disks are similarly secured a series of supportingbracketsh. The series of conveyer-scoops 'L are connected in an endless chain bymeans of links m,

hinged to the scoops, and they are in part supported on thesprocket-drums or carrierwheels by the pointed carrier-teeth g, whichenter the spaces between-the links and engage the roundedends thereof.The carrierteeth of the motive drum thus impel the chain of scoops andthose of the driven drum are carried by the chain. The chain of scoopsis to some extent supported on the up er drum by means of the engagementof the links with the said carrier-teeth; but its weight is principallysustained by the brackets h, which engage suitable flat seats orbearings h, scoop at each end thereof, being in the present instance apart of the castings comprising the heads i of the scoop. The relationand engagement of the brackets h and seats or bearings h, as shown inFig. 3, are the same in both the upper and lower sprocket-drums; but inthe former case, w ch would be that illustrated by the said Fi 3considered in an inverted position or analogous to Fig. 7, the scoopsrest and ride upon the ends of the .brackets instead of simply matchingtherewith, as they do in the case of the lower operated at aconsiderable angle from the vertical it will be understood that theweight thereof would be borne largely by the lower drum. Thisconstruction, however, forms the subject of a separate application andneed not be further described in detail here, as the present inventionrelates particularly to the construction of the conveyer-scoops.

Each scoop comprises a pair of heads or sides 1'. of flat form, having apair of curved peripheral flanges "L on its inside face separated by aspace 6 ,which forms a groove in which the ends of the body part orshell of the scoop are received and held by suitable pins driven throughboth the flanges and the shell, as shown in Fig. 2. The outer of the twoforming integral parts of the which flanges is the periphery of the headQ1, and both serve to strengthen the head, which requires no otherreinforcing ribs or ridges. On the outside of each head are a pair ofcylindrical bosses '6 cast or otherwise made integral therewith andadapted to form j ournals for the links m, which have perforations orbearings n, fitting and received upon the journals i The links are heldin place on the journals by caps i bolted to the bosses in any suitablemanner, as by means of a single bolt 2', secured through the axialcenter of the boss, as shown. 7

The curved shell of the bucket comprises a series of parallel strips orstaves r, of steel or other suitable metal, having their ends receivedbetween the two flanges tof the sides t". They are held in place by pinst, passing through the parts and preferably having their ends bent,clenched, or riveted over to hold them in place. The perforations in theflanges and staves for their reception are so laid out that the pinswill exert a keying or drawing action on the staves to force themtightly to the bottom of their retaining-grooves e. It will be seen thatthe said sectional construction of the shell of the bucket provides acheap and simple method of forming it and permits easy repair, thestaves being readily substituted by new ones when worn. This is the caseeven if the shell when the bucket is first constructed in the shop bemade of one entire piece or of two or three pieces only, for when wornout it may be replaced with staves, and these may be made of anyrequired width. As here shown, they are comparatively narrow, and eachis secured by one pin only at each end.

In operation it will be readily understood that the chain ofconveyer-scoops is moved along by the rotation of one of thecarrierdrums, which by the intermeshing of their pointed carrier-teeth 9between the rounded ends of the links m conveys the chain with it. Themotive drum will generally be placed upermost, and the ore or sandexcavated will escooped up by the scoops at the lower turning-point oftheir travel and raised to the higher turning-point, where it will bedeposited. The scoops will be sustained in part by the bearing of thelinks upon the carrier-teeth, but 0 'efly supported upon the flanges hon the inner sides of the disks of the drums.

I claim as my invention and desire to secure by Letters Patent 1. Inelevator mechanism a conveyerscoop comprising in combination a air ofends or heads and a body part or she] composed of longitudinal stavesconnecting and secured to the heads substantially in the manner and forthe purpose specified.

2. In a dredging-machine or digger a conveyer-scoop comprising incombination a pair of ends or heads each provided with a pair of flangesaround its periphery, forming an intervening groove at right angles .tothe plane of the head, and a series of longitudinal staves or sectionsforming the body part or shell of the scoop having their ends secured inthe grooves of the heads and connecting the heads, substantially in themanner and for the purpose specified.

3. n elevator mechanism, the combination of a pair of ends or heads,each provided with pairs of flanges and intervening grooves, and a bodypart or shell having its ends received in the grooves of the heads andsecured thereto by pins driven through the flanges and shell,substantially as and for the purposes specified. 8o

4. In a dredging-machine or elevator mechanism the herein-describedconveyorscoop comprising in combination the pair of ends or heads 11each provided with the pairs of flanges i around its periphery, and theseries of staves or longitudinal sections 1' having their ends receivedin the grooves between the flanges and secured thereto by pins driventhrough the flanges and the ends of the staves, substantially in themanner and for 0 the purpose specified Signed by me at New Haven,Connecticut, this 3d day of January, 1905.

WILLIAM OROSSLEY.

Witnesses:

GEORGE L. BARNES, JOHN OURRIER GALLAGHER.

